Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Palmieri, Tania"'
Publikováno v:
Phys. Rev. Lett. 125, 116403 (2020)
Elucidating the carrier density at which strongly bound excitons dissociate into a plasma of uncorrelated electron-hole pairs is a central topic in the many-body physics of semiconductors. However, there is a lack of information on the high-density r
Externí odkaz:
http://arxiv.org/abs/2007.10051
Autor:
Baldini, Edoardo, Palmieri, Tania, Dominguez, Adriel, Ruello, Pascal, Rubio, Angel, Chergui, Majed
The way nuclear motion affects electronic responses has become a very hot topic in materials science. Coherent acoustic phonons can dynamically modify optical, magnetic and mechanical properties at ultrasonic frequencies, with promising applications
Externí odkaz:
http://arxiv.org/abs/1805.00552
Autor:
Baldini, Edoardo, Dominguez, Adriel, Palmieri, Tania, Cannelli, Oliviero, Rubio, Angel, Ruello, Pascal, Chergui, Majed
The coherent manipulation of excitons in bulk semiconductors via the lattice degrees of freedom is key to the development of acousto-optic and acousto-excitonic devices. Wide-bandgap transition metal oxides exhibit strongly bound excitons that are in
Externí odkaz:
http://arxiv.org/abs/1803.07666
The recent identification of strongly bound excitons in room temperature anatase TiO$_2$ single crystals and nanoparticles underscores the importance of bulk many-body effects in samples used for applications. Here, for the first time, we unravel the
Externí odkaz:
http://arxiv.org/abs/1703.07818
Electron Dynamics in Anatase TiO2 Nanoparticles by Ultrafast Broadband Deep-Ultraviolet Spectroscopy
Publikováno v:
EPJ Web of Conferences, Vol 205, p 05017 (2019)
The optical bandgap of anatase TiO2 nanoparticles is dominated by bulk absorption bands in the deep-ultraviolet due to strongly bound excitons. These spectral features can be utilized as a sensitive probe of carrier and lattice dynamics inside the Ti
Externí odkaz:
https://doaj.org/article/1ed06a4675364733a3f450d3ca22cafd
Autor:
Baldini, Edoardo1 ebaldini@mit.edu, Palmieri, Tania1, Pomarico, Enrico1, Auböck, Gerald1, Chergui, Majed1, Cerullo, G., Ogilvie, J., Kärtner, F., Khalil, M., Li, R.
Publikováno v:
EPJ Web of Conferences. 2019, Vol. 205, pN.PAG-N.PAG. 3p.
Autor:
Palmieri, Tania, Baldini, Edoardo, Steinhoff, Alexander, Akrap, Ana, Kollár, Márton, Horváth, Endre, Forró, László, Jahnke, Frank, Chergui, Majed
Publikováno v:
Nature Communications
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
In a seminal paper, Mahan predicted that excitonic bound states can still exist in a semiconductor at electron-hole densities above the insulator-to-metal Mott transition. However, no clear evidence for this exotic quasiparticle, dubbed Mahan exciton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::ffb8dae209da5bebfe41033dc986a24f
http://europepmc.org/articles/PMC7016123
http://europepmc.org/articles/PMC7016123
Autor:
Palmieri, Tania
The strength of the electron-hole interaction in bulk semiconductors is not only determined by the dielectric environment, but also depends on the presence of other quasiparticles - free charge carriers or phonons - that populate the system. In the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3199f99438cc77f2dac4dfcf971fb158
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